Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Los Fresnos, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
956-233 A LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-233 0 MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2007-03-05   
956-233 1 LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-233 2 HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2007-06-13   
956-233 3 LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-233 4 LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-233 5 LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-233 6 LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-233 7 MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2007-01-12   
956-233 8 LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-233 9 LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-238 A HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568      
956-238 0 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2008-03-12   
956-238 1 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-08-09   
956-238 2 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2011-03-20   
956-238 3 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2010-09-03   
956-238 4 MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2004-05-20   
956-238 5 MCALTXHBDS0  4866 SMARTCOM TELEPHONE, LLC 568   2005-06-10   
956-238 6 HRLNTXHGBMD  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 568   2005-10-20   
956-238 7 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568      
956-238 8 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568      
956-238 9 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568      
956-254 A LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568      
956-254 0 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2009-02-13   
956-254 1 MCALTX96HMD  7399 WESTEL, INC. - TX 568   2009-12-14   
956-254 2 HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2011-01-14   
956-254 3 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2011-05-14   
956-254 4 HRLNTXFPDMD  776A VTX COMMUNICATIONS, LLC 568   2016-06-06   
956-254 5 LSFRTXLFRS0  9533 SOUTHWESTERN BELL 568   2007-12-29   
956-254 6 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2013-02-14   
956-254 7 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2012-02-19   
956-254 8 HRLNTXATYMD  516C AT&T CORP. 568   2011-09-12   
956-254 9 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2012-06-05   
956-303 A HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-374 A HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568      
956-374 0 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-04-29   
956-374 1 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-04-29   
956-374 2 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2017-06-02   
956-374 3 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2017-07-29   
956-374 4 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2017-07-29   
956-374 5 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2019-11-16   
956-374 6 HRLNTXATTMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2018-06-11   
956-374 7 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-04-01   
956-374 8 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-04-01   
956-374 9 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-08-09   
956-410 A HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568      
956-410 0 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2014-05-16   
956-410 1 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2014-05-16   
956-410 2 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2015-09-11   
956-410 3 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2015-09-11   
956-410 4 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2015-09-13   
956-410 5 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2020-08-13   
956-410 6 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2016-08-26   
956-410 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2025-04-09   
956-410 8 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2015-11-25   
956-410 9 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2013-05-31   
956-434 A HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-434 0 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2012-11-19   
956-434 1 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-434 2 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-434 3 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-434 4 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2013-04-26   
956-434 5 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-434 6 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-434 7 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-434 8 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-434 9 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-556 A HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568      
956-556 0 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-10-03   
956-556 1 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-10-03   
956-556 2 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-02-03   
956-556 3 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-02-03   
956-556 4 HRLNTXHG8MD  073H TELNYX LLC 568   2021-03-21   
956-556 5 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2021-06-01   
956-556 6 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2022-04-07   
956-556 7   515J IP HORIZON LLC 568   2022-03-31   
956-556 8 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-09-23   
956-556 9 HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-06-24   
956-674 A HRLNTXDU5MD  490J DISH WIRELESS, LLC 568      
956-674 0 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-08-14   
956-674 1 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2022-10-13   
956-674 2 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2022-09-26   
956-674 3 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2023-04-30   
956-674 4 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2023-10-02   
956-674 5 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2023-10-02   
956-674 7 HRLNTXHGXPX  515J IP HORIZON LLC 568   2023-12-28   
956-674 8 HRLNTXHGXPX  515J IP HORIZON LLC 568   2023-12-28   
956-674 9 HRLNTXDU5MD  490J DISH WIRELESS, LLC 568   2022-05-01   
956-953 A HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-04-07   
956-953 0 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-04-07   
956-953 1 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-04-25   
956-953 2   515J IP HORIZON LLC 568   2025-05-04   
956-953 3   515J IP HORIZON LLC 568   2025-05-04   
956-953 4 HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2024-10-17   
956-953 8 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-05-11   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.